Lamp-burner



(No Model.) 7

R. MOKENNEY DILL.

LAMP BURNER.

Patented Jan. 6 1885.

,OOOOOOOOQOQO Inn Bids.

UNITED STATES PATENT OFFICE.

RUFUS MOKENNEY DILL, OF FREEPORT, MAINE.

LAMP-BURNER.

SPECIFICATION forming part of Letters Patent No. 310,392, dated January6, 1885.

Application filed April 14, 1884. (No model.)

To all whom it may concern:

Be it known that I, RUFUs MGKENNEY DILL, of Freeport, in the county ofCumberland and State of Maine, have invented certain new and usefulImprovements in Lamp-Burners; and I do hereby declare that the followingis a full, clear, and exact description of the invention, which willenable others skilled in the art to which it appertains to make and usethe same, reference being had. to the accompanying drawings, and toletters of reference marked thereon, which form a part of thisspecification.

Figure 1 is a top plan. Fig. 2 is a bottom plan. Fig. 3 is a sideelevation. Fig. 4 is a longitudinal section.

. Same letters show like parts.

My invention relates to burners for lamps, and has more particularreference to those now known as "kerosene-oil lamps. The greatdesideratum in burners of this description is,first,to obtain asufficient and uniform supply of air to the flame in order to secure therequisite quantity of oxygen, and, second, to have the supply or currentsteady in order to keep the flame from flickering or waving. If theseobjects are accomplished, the brightness and steadiness of the flame arepromoted.

My invention also has relation to preventing the accumulation of oil onthe top of the burner or around it, and also to prevent any unpleasantsmell when the lamp is burning or after it has been extinguished.

a shows a cap with a slit, 7), in the top thereof. This slit allows thewick-tube c to pass up through it, so that the lower edge of the cap ashall rest on the perforated plate d. This cap has perforations c in thetop, and others, f, in the sides thereof, in the manner illustrated inthe drawings. It will be seen, also, that when the cap a is placed inposition on the perforated plate d a portion of the perforations arewithin the circumference of the cap and some of them outside of it. Theobject of the cap is to provide a uni form current of heated air fromthe chamber inside of the cap a, which current, uniting with thatflowing toward the flame from the outside, furnishes an ample supply ofoxygen to the flame, which burns with very great brilliancy andwhiteness. The current coming up from the chamber formed by the cap athrough the perforations c and f insures steadiness to the air coming incontact with the flame. It prevents, in other words, the outsidecurrents of air-supply from disturbing the steadiness of the flame. Boththe outside and inside currents-t. a, both those flowing toward theflame from within the cap and from outside of it-furnish a full sup plyof air. The combustion is thus rendered much more nearly perfect, and asa consequence a muchlarger flame can be employedthat is, the wick can beturned up higher than in other forms of burnerswithout smoking or theescape of the uneonsumed resultants of imperfect combustion. Theperforations in the plate d,that are outside the cap a, also furnish asupply of air to the flame; but the whole is steadied by the currentsfrom the chamber formed by placing the cap a around the wicktube, as hasbeen described. In the bottom or plate 9, I make a concavity, h. At thetop or apex of this I construct a hole or holes, 2'. This is to conductaway from over the oil in the body of the lamp any gases that may formduring the burning of the lamp by heat. By this means they are conductedto the flame of the lamp, being carried thither by the currents of air,and are consumed. At the base of the concavity or recess I constructother holes on a level with the top side of the plate or bottom 9. Theseare openings to admit of the flowing back into the body of the lamp anyoil that may accumulate on the plate or bottom 5 hat I claim as myinvention, and desire to secure by Letters Patent of the United States,is

1. The cap a, resting on the perforated plate (I, and having the slit b,the perforations 0 in the top, and the perforations f in the sides, incombination with and resting upon the .perlbrated plate (Z, and incombination with the wick-tube c, as herein set forth.

2. The concavity h, with its perforations in the top and at a level withthe plate or bottom 9, as and for the purposes herein set forth.

In testimony that I claim the foregoing as my own I aflix my signaturein presence of two witnesses.

RUFUS MGKENNEY DILL.

\Vitnesses:

JOHN L. VRELsnY, Annnn DENNISON.

